Changing how functions are called

Old way:

    functionName CONTENT argument1 argument2

New way:

    echo -n "$CONTENT" | functionName argument1 argument2

This follow the Unix style more closely.

tests/function-args.env

@@ -2,16 +2,12 @@ name=Willy
 MO_ALLOW_FUNCTION_ARGUMENTS=true
 
 pipeTo() {
-    echo -n "$1" | "$2"
+    cat | "$1"
 }
 
 testArgs() {
     printf "%d" "$#"
 
-    # Remove content. Note that when zero arguments are passed, this
-    # line does nothing and $1 will still be the content.
-    shift
-
     # Display all arguments
-    printf " %q" "$@"
+    printf " %q" ${@+"$@"}
 }

tests/function-args.expected

@@ -1,4 +1,4 @@
-No args: 1 '' - done
-One arg: 2 one - done
-Getting name in a string: 2 The\ name\ is\ Willy - done
+No args: 0 '' - done
+One arg: 1 one - done
+Getting name in a string: 1 The\ name\ is\ Willy - done
 Reverse this: edcba

tests/function.env

@@ -1,5 +1,5 @@
 name=Willy
 wrapped() {
-    # The final newline is eaten by mo
-    echo "<b>$1</b>"
+    # This eats the newline in the content
+    echo "<b>$(cat)</b>"
 }

tests/function.expected

@@ -1,2 +1 @@
-<b>  Willy is awesome.
-</b>... this is the last line.
+<b>  Willy is awesome.</b>... this is the last line.